Material moving device



June 7, 1932. WQOLDRIDGE 1,861,731

MATERIAL MOVING DEVICE Filed April 15, 1950 3 Sheets-Sheet l M.WOOLDFZEDGE ERIAL MOVTNG DEVICE June 7, 1932. M' WOQLDRIDGE 1,861,731

MATERIAL MOVING DEVICE Filed April 15. 19:50 3 Sheets-Sheet s 111: ii: 1leak N lVLqcn W0a40/2/0a Patented June 5", i932 UETE FTTES MATERIALMOVING DEVICE Application filed April 15,

This invention relates to a device or apparatus for removing ordisplacing dirt, sand, snow. and other materials, whether loose solidand it includes in ils functions the 0bjects of that class of apparatusdenominated generally as back fillers, bull dozers, scrapers, surfacers,etc., the present device being designed to perform with superiorfacility the various objects, singly or combined, of each 1 of thedesignated classes of implements.

Of the manifold objects of this invention, the prime one is to provide asimple, strong, durable and ellicient adjunct-ive unit for a tractiondevice of any desired type by which the pull of the traction devicecauses the unit to push objects, whether dirt, snow, roadmetal, bouldersand the like, ahead or to one side of it.

Another object is to provide an accessory of this general character, inconnect-ion with a traction means, 'and connections with suchtractionmeans by which the accessory or unit under normal conditions,will remain parallel with the surface operated over or 5 upon while thetraction device or power unit is free to respond to surfaceirregularities without affecting the unit and by which strains on thetractor and strains tending to distort the adj unctive unit areeliminated.

Other objects of the invention are to provide, in combination with atractor, a unit that is connected therewith for relative pivotal andtiltable movement: to provide a unit with a replaceable head: to providemeans by which the pivotal and tilting movement of said unit may beeffected, and to pro vide a device of the general character referred towhich may be readily cont-rolled and manipulated by a single operator.

The invention relates to and is an improvement over that type andcharacter of machine or apparatus described and claimed in my co-pendingapplication for patent filed 5 March 3, 1923, Serial Number 258,761, new

Patent No. 1,788,698.

The accompanying drawings which form a part of this application,illustrate a preferred embodiment of the invention, and

therein 1930. Serial No. 144,424.

Fig. 1 is a plan view showing my invention.

Fig. 2 is a side elevation.

Fig. 3 is a front. view showing the scraper blade in tilted position.

Fig. 4 is a rear view showing the rear of the frame and means fortilting the same, dotted lines indicating tilt of the frame in onedirection.

Fig. 5 is a side elevational view showing the means by which the framemay be raised, lowered, or tilted, the tractor being omitted.

Fig. 6 is a fragmentary detail on line 6-6-Fig. 1.

Fig. 7 is a fragmentary section on line :15 h y l-i-F1g. o,look1ng 1nthe direction of the arrow.

Fig. 8 is an enlarged fragmentary section on line 88Fig. 1.

Fig. 9 is a plan view of a swiveling bladeoarrying head.

Fig. 10 1s a rear view of Fig. 9.

Fig. 11 is a rear view of a carrier that is arranged for removableattachment to the front end of the frame and to receive theblade-carrying head shown in Figs. 9 and 10.

Fig. 12 is a plan view'of Fig. 11.

Fig. 13 is an elevational view of a carrier that is arranged forremovable attachment to the front of the frame and to receive astationary bull dozer.

Fig. 14 is a plan view of same.

Fig. 15 is an enlarged detail, partly in section showing the structuralassembly of one of the manually operated tilting means, and viewed alongline 15-15-Fig 2 in the direction of the arrow and Fig. 16 is anenlarged fragmentary side view of Fig. 15.

n a generic sense, the invention consists of a frame arranged tosurround a vehicle or traction device of any chosen type and to beconnected with the traction device and pr ferabl y to the drawbarthereof, in such manner that it may be tilted to one side or the other;95 means being provided on the traction device by which such tilting maybe accomplished and means also being provided to elevate or lower thefront of the frame, which constitutes a separable element replaceable byanl other or other elements as conditions demand or require for theperformance of diilerent classes and characters of work.

in av more specific sense and referring in particular detail to theaccompanying drawings, my invention is shown as comprising a frame A,consisting of side members 1 and 2, the rear ends of which are rigidlysecured to and conjoined by a substantial cross bar 3, and the frontends of which are arranged to be conjoined by carriers 4 and 5, shown inFigs. 11. 12- and and 13 and 14 respectively. which are detachablyconnected to said side members 1 and 2 for the purpose of interchangingthem, when the class of work to be done requires such interchange. Forthis purpose each of the side members 1 and 2 of the frame A is providedwith an extension (3 and 7, which are arranged to engage in bores 8 and9 and 10 and 11 respectively provided in the carriers iand 5, theconnections between the extensions 6 and 7 and the carriers 5 and 5being substantially swivelled one. and the union between said carriersand 5 and said extensions being insured and eil'ectcd by mutuallyengaging locking means 12 and 13 provided on the carriers and the ,s ofthe side members 1 and 2 of the in. l crring to Figs. 11 and 12, thecara; there shown is adapted to receive and 'iport blade carrying head14 Figs. 9 and L. hich provided with a rearwardly extent mg circularbearing 15, that is arranged to lit into a recess or socket 16 in thecarrier -.l-. the. bearing 15 being held within said sockb carrier andthe bearing 15 and about vnarh pin the hearing may be swung in a limitedarc. The bearing 15 is provided with 12C a plurality of holes 18 toreceive bolts 19 which are adapted to abut against the edge of thecarrier, as shown in Fig. 1 and thereby define and maintain the angle atwhich the head and its blade 20 have been set.

Referring to Figs. 13 and let the carrier 5 there shown is arranged toreceive and support a blade 20 that is adapted principally forstraighoahead displacement of earth or objects and for that reason socon- 09 nccted to the carrier that it may be adjusted tically but nothorizontally relatively reto. The carrier 5 is arranged for rein; tableaitaclnnent to the ends or extensions nd of the frame members 1 and 2and 55 for this purpose is provided with the bores i and 11attire-referred to to receive said ex- The connection between said carHi0? ions and 7 of the side frame 2 a --relcd one. the union i 15,1insured and effected by mulocking means 12 and 13. disengagement of thecarrier side. m mbers 1 and 2. while perive rotation thereof.

055 bar 3 which is practically an by a king pin 17 which extendsthrougheaner integral unit with the side members 1 and 2 of the frame A,connected centrally thereof with the draw bar 21 of the tractor .22, by

a pin 23 which extends through an aperture 24, which, as seen in Fig. 8,is diametrically to larger than said pin, thereby enabling the rear bar3 and frame A to pivot thereon and to be tilted relatively to said drawbar 21, when for any reason it is desirable to place the cutting,scraping or bull dozing blade at 75 an angle to the horizontal, orrelatively to the tractor 22 or the surface operated over.

Each of the side members 1 and 2 of the frame A is provided on theinside thereof with a wear or rub plate 25 and 26, which 80 plates arearranged to bear against or contact with complementary plates 27 and 28,rigidly secured to the tractor 22. These plates function primarily toprevent injury to the tractor and also to limit the side moveas meat ofthe frame A. The plates 27 and 28 form supports for a pair of beams 29and 30 which are pivotally connected approximatel centrally thereof tosaid supporting plates 2? and 28. Bearings 31 and 32 are swiveled in oron the ends of said beams 29 and 30 the bearings 31 and 32 being securedor held in connection with said beams by latches 33 and and 34 pivotallymounted on the beams and adapted to engage in grooves 33 and 34' in thebearings 31 and 32. By this arrangement the bearings may be readilycletached or removed therefrom.

In said bearings 31 and 32, is journaled a shaft 35, upon which issecured a plurality of 190 sheaves 36 and 37, and 38. The shaft isrotatable in the bearings 31 and 32 and is also longitudinally movablerelatively to the hearing 31 which for this purpose is provided with acollar 39 which fits over the end of the 106 shaft and limits thelongitudinal move ment thereof. The object of this arrangement is toenable the bearing 31 to move relatively to and in a directionlongitudinally of the shaft during the vertical movement of the 110lever 29 relatively to the other, such movement also requiring that thebearings 31 and 32 be journaled for oscillation in said beams 29 and 30,as described. 2

Flexible connections preferably in the no form of chains 40 and 41 areemployed to mmnect either of the carriers 4- and 5 ill: the sheaves 36and 37, and a flexible connectiim a2 is used to connect the sheave 33with a fluid actuated piston rod 43. the fluid being 320 supplied to anddisplaced from a cylinder 44. mounted upon the beam 30 and in which thepiston is operable. through preferably ble pipes or tubes 45 and ill.

.The 1' *ar ends of said beams connected to threaded standn lormingparts of upright su; which are oscillatably moun ed in journals 51. thatare peruuincnti liar-1i to m upon the tractor Sim-c the journals i-llet-l and the assemblies appurtenant thereto are identical in structureand operation, but one will be specifically described reference beingmade to the detailed views Figs. 15 and 16 Each of the rear ends of thebeams 29 and 30 is provided with an eccentric aperture in which isdisposed a concentric flanged collar 53 through which the said threadedstandards are extended, the said flanged collars 53 by reason of thestructure recited, being movable relatively to and in the aperture 52 inthe ends of said beams, but maintainin at all times a fixed relation tothe longitudinal plane of the standards, thereby forming a protectingmedium for the threads on the standards, 47 and 48 which obviously movein arcuatc paths during the elevation and lowering of said beams, by themeans which I shall now describe.

Within housings 54 and 54, Fig. 15, are rotatably contained bevel gears55 internally threaded for engagement with the threaded standards 47 and48, and mounted or resting upon antifriction bearings 56 with which theflanged collars 53 in the ends of the beams are held in engagement bythegravitational over balance of said beams. Motion is imparted to saidbevel gears 55, by bevel pinions 57, keyed to shafts 58 journaled insaid housings 54 and 54 and carrying hand wheels 59 and 59 by which saidshafts and their pinions 54 are rotated to cause the bevel gears 55 totravel up or down upon the threaded standards f? and 48 and therebyraise or lower the beams 29 and 30. Mute-ally engaging means (30 and 61are provided respectively on the beams and housings to lock saidhousings against rotation, during the operation of the hand wheels Draftmeans in the form of chains 62 and 68, Figs. 1 and 2, are used toconnect the cross bar 3 with said upright supports 49 and 50, means (ifand also being: provided to adjust such draft chains, as conditionsrequire. The draw bar 21, as is usual in certain types of tractors, isunder the tension of a spring 66 1,. againstwhich the pull of the frameis rted to a limited extent, it being impracl al for the spring tosustain the force of l on the frame. I addition. a (euispesed spring isincapable of equalizny pull on the cross bar 3, and for this i in, thedraft chains 62 and 63 are pro- ,vhich talte up the pull ion; before the.as reached the limit of its compres- Wing thus serving to absorb the iton the initial pull of the trac- 2'9 and 30, one side or the c A and itsassociated head fted relatively to the trace operated over, through J a-Union of the hand wheels 59 or 59, f-tn'fh' one or other of said beams29 or 30 pivot. Such tilting of the frame A.

ton rod 43, which as seen serves to elevate the end thereof is in eitherelevated or lowered position. The raising or lowering of the front ofthe frame is effected by winding of the chains 40 and 41 upon orunwinding of said chains from the sheaves 36 and 37, that are secured tothe shaft 35, and which shaft is turned by the mechanism described,namely the sheave 38, chain 42 and fluid actuated pisframe A, whlle thelowering thereof .occurs under its own Weight.

What I claim, is:

1. In a device of the character disclosed, in combination with avehicle, a frame surrounding said vehicle and connected with the rear ofsaid vehicle to have a pivotal and tilting movement, a blade connectedwith the frame, means to elevate the front of the frame and means totilt the frame transversely.

2. In a device of the character disclosed, in combination with atractor, a frame connected at the rear thereof for relative longitudinaland transverse tilting movement, a blade connected to the front of saidframe, means to lift and lower the front of said frame,and in-.dependentmeans to tilt said frame transversely relatively to thetractor.

3. In a device of the character disclosed, in combination with a tractora frame connected at the rear thereof with the rear of said tractor forrelative longitudinal and transverse tilting movement. a bladecon'iiected to the front of said frame, means to lift and lower thefront of said frame, and means manually controllable independently ofsaid lifting and lowering means. to tilt said frame transverselyrelatively to said tractor.

4. In a device of the character disclosed, in combination with atractor, a frame inclnd- 335 ing side members, a rear member, and afront member swiveled in the said side members and removably connectedtherewith, a blade carried by said front member, and means connectingthe rear member with; said tractor for longitudinal and transversetilting movement relatively thereto.

5. In a device of the nature. disclos "I combination with a tractor, aframe incl ing side members and a rear member, a in connecting the frontends of said side hers and detachablv swiveled thcreh'i, meansconnecting: the rear member with said tractor for longitudinal. andtransvcz tilting movement relatively thereto.

t In combination with a tractor, a surrounding: the tractor and com therear thereof for relative l and trans-vet's "lilting: movemen l. otallysupported upon the tractor, swivelcd to said levers, llci ibl inclnectin the fr nt of th frame and means to rotat said she t in wind saidtics hlc means ti con and thereby lift or lower the front of d frame,and means for 1131i ating said levers to tilt the frame transverselyrelatively to the ground surface.

7. In combination with a tractor, a frame surrounding the tractor andconnected with the rear thereof for relative longitudinal and transversetilting movement, levers pivotally supported upon the tractor, a shaftcarried by said levers, means connecting the front of said frame andshaft, means to rotate said shaft to lift or lower the front of theframe, and means to operate said levers to tilt the frame transversely.V

8. In combination with a tractor, a frame surrounding the tractor andconnected at the rear thereof with the tractor for relative longitudinaland transverse tilting movement, levers pivotally supported upon thetractor, a shaft carried by said levers, connections between the frontof said frame and said shaft and means to operate said leverssimultaneously to elevate the front of the frame or independently totilt said frame to one side or the other.

9. In a device of the character disclosed, in combination with atractor, a frame surrounding said tractor, means connecting the rear ofsaid frame with the draw-bar of said tractor for longitudinal andtransverse tilting movement relatively thereto and to said tractor, anddraft chains connecting the rear of said frame with said tractor andsubstantially paralleling opposite sides of said tractor.

10. In a device of the character disclosed, in combination withatractor, a frame surrounding said tractor and connected to the drawbarof said tractor for longitudinally a pair of said tractor Wheels, andhydraulicmeans secured to said supporting bracket and means between thehydraulic means and the forward end of said frame to elevate and lowerthe front of said frame.

In testimony whereof I have set my hand.

MACK WOOLDRIDGE.

and transversely tiltable movement, draft chains connecting the rear ofsaid frame with said tractor, and a blade carrying head deta chablyconnected with said frame and swiveled therein.

11. In a device of the character disclosed, in combination with atractor, a frame surrounding said tractor, a blade carrier detachablyconnected to the front of said frame, beams pivotally supported on saidtractor, bearings swiveled in one end of said beams, a shaft journaledin said bearings, a pair of sheaves secured to said shaft, flexibleconnections between the carrier and said pair of sheaves, another sheavesecured to said shaft, a cylinder mounted on one of said beams, a fluidpressure operated piston rod within said cylinder. flexible meansconnecting said lastnamed sheave with said piston rod whereby uponmovement of said piston rod said sheave is rotated and the flexibleconnections between the blade carrying head and pair of sheaves arecaused to be wound upon or unwound from said sheaves thereby elevatingor lowering the blade carrying head and front of said frame, and meansoperable against the other ends of said beams to tilt the frametransversely.

